https://bugs.freedesktop.org/show_bug.cgi?id=87886
Stéphane Travostino <stephane.travost...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |RESOLVED
Resolution|--- |NOTABUG
--- Comment #30 from Stéphane Travostino <stephane.travost...@gmail.com> ---
Solved!
Yes, forcing the min/max i915 freq didn't stop the GPU from going to the low
frequency by itself, so as you say it's something outside the control of the
kernel.
This machine is a Sony Vaio VPCSA series, and has a "sony_laptop" module to
control keyboard backlight, and.. thermal control.
By default "/sys/devices/platform/sony-laptop/thermal_control" is set to
"balanced", changing it to "performance" I get:
- Stable FPS on both Intel & Radeon
- Intel CAGF frequency stable on max when running intensive OpenGL operations
- No more FPS drops
Thanks everybody for the help troubleshooting this, marking this as NOTABUG.
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